Hello, I have a rain water system that I used the drainage pvc to harvest and painted all pvc black to help protect it and for looks. I am here reading now because my water has a chemical taste if I drink it straight without filtering. I am concerned my pvc is leeching chemicals into my water. It’s a bit of a chemical/chlorine taste. Is that the phalates? I also use a Berkey to filter and the filtered water tastes good. I’m still worried about using it in my garden though. I gather my water off of a cement roof. I’m now looking for a solution. So just thought I would share.